//package cn.oyzh.jeditermfx.terminal.util;
//
//import cn.oyzh.jeditermfx.core.util.Ascii;
//import cn.oyzh.jeditermfx.terminal.emulator.charset.CharacterSets;
//import cn.oyzh.jeditermfx.terminal.model.CharBuffer;
//import org.jetbrains.annotations.NotNull;
//
//import java.util.Arrays;
//
///**
// * @author traff
// */
//public class CharUtils {
//
//    private static final int ESC = Ascii.ESC;
//
//    private static final int DEL = Ascii.DEL;
//
//    // NUL can only be at the end of the line
//    public static final char NUL_CHAR = 0x0;
//
//    public static final char EMPTY_CHAR = ' ';
//
//    //JediTerm Unicode private use area U+100000–U+10FFFD
//    public static final char DWC = '\uE000'; //Second part of double-width character
//
//    private CharUtils() {
//    }
//
//    private static final String[] NONPRINTING_NAMES = {"NUL", "SOH", "STX", "ETX", "EOT", "ENQ",
//            "ACK", "BEL", "BS", "TAB", "LF", "VT", "FF", "CR", "S0", "S1",
//            "DLE", "DC1", "DC2", "DC3", "DC4", "NAK", "SYN", "ETB", "CAN",
//            "EM", "SUB", "ESC", "FS", "GS", "RS", "US"};
//
//    public static byte[] VT102_RESPONSE = makeCode(ESC, '[', '?', '6', 'c');
//
//    public static String getNonControlCharacters(int maxChars, char[] buf, int offset, int charsLength) {
//        int len = Math.min(maxChars, charsLength);
//        final int origLen = len;
//        char tmp;
//        while (len > 0) {
//            tmp = buf[offset++];
//            if (0x20 <= tmp) { //stop when we reach control chars
//                len--;
//                continue;
//            }
//            offset--;
//            break;
//        }
//        int length = origLen - len;
//        return new String(buf, offset - length, length);
//    }
//
//    public static int countDoubleWidthCharacters(char[] buf, int start, int length, boolean ambiguousIsDWC) {
//        int cnt = 0;
//        for (int i = 0; i < length; i++) {
//            int ucs = Character.codePointAt(buf, i + start);
//            if (isDoubleWidthCharacter(ucs, ambiguousIsDWC)) {
//                cnt++;
//            }
//        }
//        return cnt;
//    }
//
//    public enum CharacterType {
//
//        NONPRINTING,
//
//        PRINTING,
//
//        NONASCII,
//
//        NONE
//    }
//
//    public static CharacterType appendChar(final StringBuilder sb, final CharacterType last, final char c) {
//        if (c <= 0x1F) {
//            sb.append(EMPTY_CHAR);
//            sb.append(NONPRINTING_NAMES[c]);
//            return CharacterType.NONPRINTING;
//        } else if (c == DEL) {
//            sb.append(" DEL");
//            return CharacterType.NONPRINTING;
//        } else if (c > 0x1F && c <= 0x7E) {
//            if (last != CharacterType.PRINTING) sb.append(EMPTY_CHAR);
//            sb.append(c);
//            return CharacterType.PRINTING;
//        } else {
//            sb.append(" 0x").append(Integer.toHexString(c));
//            return CharacterType.NONASCII;
//        }
//    }
//
//    public static void appendBuf(final StringBuilder sb, final char[] bs, final int begin, final int length) {
//        CharacterType last = CharacterType.NONPRINTING;
//        final int end = begin + length;
//        for (int i = begin; i < end; i++) {
//            final char c = (char) bs[i];
//            last = appendChar(sb, last, c);
//        }
//    }
//
//
//    public static byte[] makeCode(final int... bytesAsInt) {
//        final byte[] bytes = new byte[bytesAsInt.length];
//        int i = 0;
//        for (final int byteAsInt : bytesAsInt) {
//            bytes[i] = (byte) byteAsInt;
//            i++;
//        }
//        return bytes;
//    }
//
//    /**
//     * Computes text length as sum of characters length, treating double-width(full-width) characters as 2, normal-width(half-width) as 1
//     * (Read http://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms)
//     */
//    public static int getTextLengthDoubleWidthAware(char[] buffer, int start, int length, boolean ambiguousIsDWC) {
//        int result = 0;
//        for (int i = start; i < start + length; i++) {
//            result += (buffer[i] != CharUtils.DWC) && isDoubleWidthCharacter(buffer[i], ambiguousIsDWC)
//                    && !((i + 1 < start + length) && (buffer[i + 1] == CharUtils.DWC)) ? 2 : 1;
//        }
//        return result;
//    }
//
//    public static boolean isDoubleWidthCharacter(int c, boolean ambiguousIsDWC) {
//        if (c == DWC || c <= 0xa0 || (c > 0x452 && c < 0x1100)) {
//            return false;
//        }
//
//        return mk_wcwidth(c, ambiguousIsDWC) == 2;
//    }
//
//
//    public static CharBuffer heavyDecCompatibleBuffer(CharBuffer buf) {
//        char[] c = Arrays.copyOfRange(buf.getBuf(), 0, buf.getBuf().length);
//        for (int i = 0; i < c.length; i++) {
//            c[i] = CharacterSets.getHeavyDecBoxChar(c[i]);
//        }
//        return new CharBuffer(c, buf.getStart(), buf.length());
//    }
//
//
//    // The following code and data in converted from the https://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
//    // which can be treated a standard way to determine the width of a character
//
//
//    private static final char[][] COMBINING = new char[][]{
//            new char[]{0x0300, 0x036F}, new char[]{0x0483, 0x0486}, new char[]{0x0488, 0x0489},
//            new char[]{0x0591, 0x05BD}, new char[]{0x05BF, 0x05BF}, new char[]{0x05C1, 0x05C2},
//            new char[]{0x05C4, 0x05C5}, new char[]{0x05C7, 0x05C7}, new char[]{0x0600, 0x0603},
//            new char[]{0x0610, 0x0615}, new char[]{0x064B, 0x065E}, new char[]{0x0670, 0x0670},
//            new char[]{0x06D6, 0x06E4}, new char[]{0x06E7, 0x06E8}, new char[]{0x06EA, 0x06ED},
//            new char[]{0x070F, 0x070F}, new char[]{0x0711, 0x0711}, new char[]{0x0730, 0x074A},
//            new char[]{0x07A6, 0x07B0}, new char[]{0x07EB, 0x07F3}, new char[]{0x0901, 0x0902},
//            new char[]{0x093C, 0x093C}, new char[]{0x0941, 0x0948}, new char[]{0x094D, 0x094D},
//            new char[]{0x0951, 0x0954}, new char[]{0x0962, 0x0963}, new char[]{0x0981, 0x0981},
//            new char[]{0x09BC, 0x09BC}, new char[]{0x09C1, 0x09C4}, new char[]{0x09CD, 0x09CD},
//            new char[]{0x09E2, 0x09E3}, new char[]{0x0A01, 0x0A02}, new char[]{0x0A3C, 0x0A3C},
//            new char[]{0x0A41, 0x0A42}, new char[]{0x0A47, 0x0A48}, new char[]{0x0A4B, 0x0A4D},
//            new char[]{0x0A70, 0x0A71}, new char[]{0x0A81, 0x0A82}, new char[]{0x0ABC, 0x0ABC},
//            new char[]{0x0AC1, 0x0AC5}, new char[]{0x0AC7, 0x0AC8}, new char[]{0x0ACD, 0x0ACD},
//            new char[]{0x0AE2, 0x0AE3}, new char[]{0x0B01, 0x0B01}, new char[]{0x0B3C, 0x0B3C},
//            new char[]{0x0B3F, 0x0B3F}, new char[]{0x0B41, 0x0B43}, new char[]{0x0B4D, 0x0B4D},
//            new char[]{0x0B56, 0x0B56}, new char[]{0x0B82, 0x0B82}, new char[]{0x0BC0, 0x0BC0},
//            new char[]{0x0BCD, 0x0BCD}, new char[]{0x0C3E, 0x0C40}, new char[]{0x0C46, 0x0C48},
//            new char[]{0x0C4A, 0x0C4D}, new char[]{0x0C55, 0x0C56}, new char[]{0x0CBC, 0x0CBC},
//            new char[]{0x0CBF, 0x0CBF}, new char[]{0x0CC6, 0x0CC6}, new char[]{0x0CCC, 0x0CCD},
//            new char[]{0x0CE2, 0x0CE3}, new char[]{0x0D41, 0x0D43}, new char[]{0x0D4D, 0x0D4D},
//            new char[]{0x0DCA, 0x0DCA}, new char[]{0x0DD2, 0x0DD4}, new char[]{0x0DD6, 0x0DD6},
//            new char[]{0x0E31, 0x0E31}, new char[]{0x0E34, 0x0E3A}, new char[]{0x0E47, 0x0E4E},
//            new char[]{0x0EB1, 0x0EB1}, new char[]{0x0EB4, 0x0EB9}, new char[]{0x0EBB, 0x0EBC},
//            new char[]{0x0EC8, 0x0ECD}, new char[]{0x0F18, 0x0F19}, new char[]{0x0F35, 0x0F35},
//            new char[]{0x0F37, 0x0F37}, new char[]{0x0F39, 0x0F39}, new char[]{0x0F71, 0x0F7E},
//            new char[]{0x0F80, 0x0F84}, new char[]{0x0F86, 0x0F87}, new char[]{0x0F90, 0x0F97},
//            new char[]{0x0F99, 0x0FBC}, new char[]{0x0FC6, 0x0FC6}, new char[]{0x102D, 0x1030},
//            new char[]{0x1032, 0x1032}, new char[]{0x1036, 0x1037}, new char[]{0x1039, 0x1039},
//            new char[]{0x1058, 0x1059}, new char[]{0x1160, 0x11FF}, new char[]{0x135F, 0x135F},
//            new char[]{0x1712, 0x1714}, new char[]{0x1732, 0x1734}, new char[]{0x1752, 0x1753},
//            new char[]{0x1772, 0x1773}, new char[]{0x17B4, 0x17B5}, new char[]{0x17B7, 0x17BD},
//            new char[]{0x17C6, 0x17C6}, new char[]{0x17C9, 0x17D3}, new char[]{0x17DD, 0x17DD},
//            new char[]{0x180B, 0x180D}, new char[]{0x18A9, 0x18A9}, new char[]{0x1920, 0x1922},
//            new char[]{0x1927, 0x1928}, new char[]{0x1932, 0x1932}, new char[]{0x1939, 0x193B},
//            new char[]{0x1A17, 0x1A18}, new char[]{0x1B00, 0x1B03}, new char[]{0x1B34, 0x1B34},
//            new char[]{0x1B36, 0x1B3A}, new char[]{0x1B3C, 0x1B3C}, new char[]{0x1B42, 0x1B42},
//            new char[]{0x1B6B, 0x1B73}, new char[]{0x1DC0, 0x1DCA}, new char[]{0x1DFE, 0x1DFF},
//            new char[]{0x200B, 0x200F}, new char[]{0x202A, 0x202E}, new char[]{0x2060, 0x2063},
//            new char[]{0x206A, 0x206F}, new char[]{0x20D0, 0x20EF}, new char[]{0x302A, 0x302F},
//            new char[]{0x3099, 0x309A}, new char[]{0xA806, 0xA806}, new char[]{0xA80B, 0xA80B},
//            new char[]{0xA825, 0xA826}, new char[]{0xFB1E, 0xFB1E}, new char[]{0xFE00, 0xFE0F},
//            new char[]{0xFE20, 0xFE23}, new char[]{0xFEFF, 0xFEFF}, new char[]{0xFFF9, 0xFFFB}
//    };
//
//    private static final char[][] AMBIGUOUS = new char[][]{
//            new char[]{0x00A1, 0x00A1}, {0x00A4, 0x00A4}, {0x00A7, 0x00A8},
//            new char[]{0x00AA, 0x00AA}, new char[]{0x00AE, 0x00AE}, new char[]{0x00B0, 0x00B4},
//            new char[]{0x00B6, 0x00BA}, new char[]{0x00BC, 0x00BF}, new char[]{0x00C6, 0x00C6},
//            new char[]{0x00D0, 0x00D0}, new char[]{0x00D7, 0x00D8}, new char[]{0x00DE, 0x00E1},
//            new char[]{0x00E6, 0x00E6}, new char[]{0x00E8, 0x00EA}, new char[]{0x00EC, 0x00ED},
//            new char[]{0x00F0, 0x00F0}, new char[]{0x00F2, 0x00F3}, new char[]{0x00F7, 0x00FA},
//            new char[]{0x00FC, 0x00FC}, new char[]{0x00FE, 0x00FE}, new char[]{0x0101, 0x0101},
//            new char[]{0x0111, 0x0111}, new char[]{0x0113, 0x0113}, new char[]{0x011B, 0x011B},
//            new char[]{0x0126, 0x0127}, new char[]{0x012B, 0x012B}, new char[]{0x0131, 0x0133},
//            new char[]{0x0138, 0x0138}, new char[]{0x013F, 0x0142}, new char[]{0x0144, 0x0144},
//            new char[]{0x0148, 0x014B}, new char[]{0x014D, 0x014D}, new char[]{0x0152, 0x0153},
//            new char[]{0x0166, 0x0167}, new char[]{0x016B, 0x016B}, new char[]{0x01CE, 0x01CE},
//            new char[]{0x01D0, 0x01D0}, new char[]{0x01D2, 0x01D2}, new char[]{0x01D4, 0x01D4},
//            new char[]{0x01D6, 0x01D6}, new char[]{0x01D8, 0x01D8}, new char[]{0x01DA, 0x01DA},
//            new char[]{0x01DC, 0x01DC}, new char[]{0x0251, 0x0251}, new char[]{0x0261, 0x0261},
//            new char[]{0x02C4, 0x02C4}, new char[]{0x02C7, 0x02C7}, new char[]{0x02C9, 0x02CB},
//            new char[]{0x02CD, 0x02CD}, new char[]{0x02D0, 0x02D0}, new char[]{0x02D8, 0x02DB},
//            new char[]{0x02DD, 0x02DD}, new char[]{0x02DF, 0x02DF}, new char[]{0x0391, 0x03A1},
//            new char[]{0x03A3, 0x03A9}, new char[]{0x03B1, 0x03C1}, new char[]{0x03C3, 0x03C9},
//            new char[]{0x0401, 0x0401}, new char[]{0x0410, 0x044F}, new char[]{0x0451, 0x0451},
//            new char[]{0x2010, 0x2010}, new char[]{0x2013, 0x2016}, new char[]{0x2018, 0x2019},
//            new char[]{0x201C, 0x201D}, new char[]{0x2020, 0x2022}, new char[]{0x2024, 0x2027},
//            new char[]{0x2030, 0x2030}, new char[]{0x2032, 0x2033}, new char[]{0x2035, 0x2035},
//            new char[]{0x203B, 0x203B}, new char[]{0x203E, 0x203E}, new char[]{0x2074, 0x2074},
//            new char[]{0x207F, 0x207F}, new char[]{0x2081, 0x2084}, new char[]{0x20AC, 0x20AC},
//            new char[]{0x2103, 0x2103}, new char[]{0x2105, 0x2105}, new char[]{0x2109, 0x2109},
//            new char[]{0x2113, 0x2113}, new char[]{0x2116, 0x2116}, new char[]{0x2121, 0x2122},
//            new char[]{0x2126, 0x2126}, new char[]{0x212B, 0x212B}, new char[]{0x2153, 0x2154},
//            new char[]{0x215B, 0x215E}, new char[]{0x2160, 0x216B}, new char[]{0x2170, 0x2179},
//            new char[]{0x2190, 0x2199}, new char[]{0x21B8, 0x21B9}, new char[]{0x21D2, 0x21D2},
//            new char[]{0x21D4, 0x21D4}, new char[]{0x21E7, 0x21E7}, new char[]{0x2200, 0x2200},
//            new char[]{0x2202, 0x2203}, new char[]{0x2207, 0x2208}, new char[]{0x220B, 0x220B},
//            new char[]{0x220F, 0x220F}, new char[]{0x2211, 0x2211}, new char[]{0x2215, 0x2215},
//            new char[]{0x221A, 0x221A}, new char[]{0x221D, 0x2220}, new char[]{0x2223, 0x2223},
//            new char[]{0x2225, 0x2225}, new char[]{0x2227, 0x222C}, new char[]{0x222E, 0x222E},
//            new char[]{0x2234, 0x2237}, new char[]{0x223C, 0x223D}, new char[]{0x2248, 0x2248},
//            new char[]{0x224C, 0x224C}, new char[]{0x2252, 0x2252}, new char[]{0x2260, 0x2261},
//            new char[]{0x2264, 0x2267}, new char[]{0x226A, 0x226B}, new char[]{0x226E, 0x226F},
//            new char[]{0x2282, 0x2283}, new char[]{0x2286, 0x2287}, new char[]{0x2295, 0x2295},
//            new char[]{0x2299, 0x2299}, new char[]{0x22A5, 0x22A5}, new char[]{0x22BF, 0x22BF},
//            new char[]{0x2312, 0x2312}, new char[]{0x2460, 0x24E9}, new char[]{0x24EB, 0x254B},
//            new char[]{0x2550, 0x2573}, new char[]{0x2580, 0x258F}, new char[]{0x2592, 0x2595},
//            new char[]{0x25A0, 0x25A1}, new char[]{0x25A3, 0x25A9}, new char[]{0x25B2, 0x25B3},
//            new char[]{0x25B6, 0x25B7}, new char[]{0x25BC, 0x25BD}, new char[]{0x25C0, 0x25C1},
//            new char[]{0x25C6, 0x25C8}, new char[]{0x25CB, 0x25CB}, new char[]{0x25CE, 0x25D1},
//            new char[]{0x25E2, 0x25E5}, new char[]{0x25EF, 0x25EF}, new char[]{0x2605, 0x2606},
//            new char[]{0x2609, 0x2609}, new char[]{0x260E, 0x260F}, new char[]{0x2614, 0x2615},
//            new char[]{0x261C, 0x261C}, new char[]{0x261E, 0x261E}, new char[]{0x2640, 0x2640},
//            new char[]{0x2642, 0x2642}, new char[]{0x2660, 0x2661}, new char[]{0x2663, 0x2665},
//            new char[]{0x2667, 0x266A}, new char[]{0x266C, 0x266D}, new char[]{0x266F, 0x266F},
//            new char[]{0x273D, 0x273D}, new char[]{0x2776, 0x277F}, new char[]{0xE000, 0xF8FF},
//            new char[]{0xFFFD, 0xFFFD}};
//
//
//    /* auxiliary function for binary search in interval table */
//    static int bisearch(char ucs, char[][] table, int max) {
//        int min = 0;
//        int mid;
//        if (ucs < table[0][0] || ucs > table[max][1])
//            return 0;
//        while (max >= min) {
//            mid = (min + max) / 2;
//            if (ucs > table[mid][1])
//                min = mid + 1;
//            else if (ucs < table[mid][0])
//                max = mid - 1;
//            else
//                return 1;
//        }
//        return 0;
//    }
//
//    private static int mk_wcwidth(int ucs, boolean ambiguousIsDoubleWidth) {
//        /* sorted list of non-overlapping intervals of non-spacing characters */
//        /* generated by "uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c" */
//        /* test for8-bnew char[]it control characters */
//        if (ucs == 0)
//            return 0;
//        if (ucs < 32 || (ucs >= 0x7f && ucs < 0xa0))
//            return -1;
//
//        if (ambiguousIsDoubleWidth) {
//            if (bisearch((char) ucs, AMBIGUOUS, AMBIGUOUS.length - 1) > 0) {
//                return 2;
//            }
//        }
//        /* binary search in table of non-spacing characters */
//        if (bisearch((char) ucs, COMBINING, COMBINING.length - 1) > 0) {
//            return 0;
//        }
//        /* if we arrive here, ucs is not a combining or C0/C1 control character */
//        return 1 +
//                ((ucs >= 0x1100 &&
//                        (ucs <= 0x115f ||                    /* Hangul Jamo init. consonants */
//                                ucs == 0x2329 || ucs == 0x232a ||
//                                (ucs >= 0x2e80 && ucs <= 0xa4cf &&
//                                        ucs != 0x303f) ||                  /* CJK ... Yi */
//                                (ucs >= 0xac00 && ucs <= 0xd7a3) || /* Hangul Syllables */
//                                (ucs >= 0xf900 && ucs <= 0xfaff) || /* CJK Compatibility Ideographs */
//                                (ucs >= 0xfe10 && ucs <= 0xfe19) || /* Vertical forms */
//                                (ucs >= 0xfe30 && ucs <= 0xfe6f) || /* CJK Compatibility Forms */
//                                (ucs >= 0xff00 && ucs <= 0xff60) || /* Fullwidth Forms */
//                                (ucs >= 0xffe0 && ucs <= 0xffe6) ||
//                                (ucs >= 0x20000 && ucs <= 0x2fffd) ||
//                                (ucs >= 0x30000 && ucs <= 0x3fffd))) ? 1 : 0);
//    }
//
//    public static @NotNull String toHumanReadableText(@NotNull String escapeSequence) {
//        return escapeSequence.replace("\u001b", "ESC")
//                .replace("\n", "\\n")
//                .replace("\r", "\\r")
//                .replace("\u0007", "BEL")
//                .replace(" ", "<S>")
//                .replace("\t", "TAB")
//                .replace("\b", "\\b");
//    }
//}
